Emerson SEMPELL Series Operating Instructions Manual

Sempell SerieS VSe 0 Safety relief ValVeS
Operating instructiOns
Before installation these instructions must be fully read and understood
Series
VSe 0 full lift safety relief valve and normal
safety valve.
for media of -196°C to +200°C
the application temperature of 200°C must not
be exceeded during normal operation. in case
of a guaranteed local temperature of the safety
valve not higher than 200°C (e.g. because of a
remote arrangement), the operational medium
temperature of the system to be protected can
be clearly exceeded (up to about 300°C).
Design
Design according to tO.270.01.
• closed spring bonnet
• spring-loaded (cylindrical compression
spring)
also applicable to the following accessories:
• SN 102, without easing gear
• SN 123, disc for liquids
• SN 124, disc with O-ring
Seat diameter do = 7.5 mm; 9.0 mm
Nominal size: DN 15 and 25, NPS ½ and 1
Observe design data on the tagplate!
AtteNtION!
This operating instruction does not specify the
extent of delivery. It is valid for several sizes,
designs, accessories and additional devices.
It contents generally exceeds the contractual
determined extent of delivery.
1 DANger AND WArNINg INDICAtIONS
the construction of the Sempell safety valves
corresponds to the latest state of engineering
and the valid safety regulations.
Nevertheless, improper use or improper
installation can cause risks for the personnel
or can lead to restrictions in regard of
the operational safety. therefore, the
Sempell GmbH recommends the operator of
the safety valves to take appropriate measures
and make sure that the present operating
instructions are read and understood by the
assigned personnel.
emerson.com/FinalControl
ApplICAtION lImItS
It is only allowed to use the valves according to
the details of these operating instructions and
according to the parameters and application
cases agreed in the delivery contract (see
nameplate). The application of the valve has to
take place adequate to the medium tolerances of
the used materials.
WArNINgS FOr the OperAtINg AND
mAINteNANCe perSONNel
Before commissioning and maintenance works
familiarise yourself with the legal accident
prevention regulations, the local safety
instructions and this operating instruction and
observe them.
Use the safety valve and its individual parts and
accessories only for the purpose intended by us.
please observe the following points besides
the notes given in the text:
• Danger of burning at safety valves and with
the connected pipes while operating under
increased temperature.
• Disassembly of the safety valve only in case of
pressureless plant and after cooling down.
• Protection against risks caused by
evaporation also in case of pressureless
system; for information please contact the
safety inspector concerned.
• After assembly check all sealing points in
regard of tightness.
• In case of adjustment make changes at
pressure screw and adjusting ring only with
clearly reduced pressure to avoid unintended
response.
• Carry ear protection during adjustment,
if necessary.
• Danger of injury while discharging at
disconnected discharge line.
• Extreme vibrations can lead to inadmissible
increase of operating pressure with the
possibly destruction of the safety valve or to
the destruction of the balanced bellows with
unintentional escape of medium.
© 2017 emerson. all rights reserved.
exclusion of liability
Sempell GmbH cannot be held liable in case
of improper maintenance and adjustment of a
Sempell safety valve, use of inadmissible spare
parts or utilities and in case of a temporary or
permanent connection of equipment with the
safety valve which is not approved by us.
VCIOm-02468-eN 18/08
Ma.270.01.1215 e